Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland
From glaciological observations, we found spatial variation in the input of insoluble particles (ISP) on a glacier surface from atmospheric deposition and outcropping at the surface of the glacier by surface ablation at the ablation area of the Qaanaaq Ice Cap in northwestern Greenland. Possible sou...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/80065 2023-05-15T16:20:53+02:00 Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland Matoba, Sumito Hazuki, Ryo Kurosaki, Yutaka Aoki, Teruo http://hdl.handle.net/2115/80065 https://doi.org/10.3389/feart.2020.542557 eng eng Frontiers Media http://hdl.handle.net/2115/80065 Frontiers in Earth Science, 8: 542557 http://dx.doi.org/10.3389/feart.2020.542557 http://creativecommons.org/licenses/by/4.0/ CC-BY Greenland insoluble particles Qaanaaq dark ice albedo reduction 450 article fthokunivhus https://doi.org/10.3389/feart.2020.542557 2022-11-18T01:06:16Z From glaciological observations, we found spatial variation in the input of insoluble particles (ISP) on a glacier surface from atmospheric deposition and outcropping at the surface of the glacier by surface ablation at the ablation area of the Qaanaaq Ice Cap in northwestern Greenland. Possible sources of ISP input to the glacier surface were outcropping at the surface of the glacier by ablation at intermediate and low elevations, and from atmospheric deposition at high elevations. The annual atmospheric deposition of ISP was larger at high elevations than at intermediate and low elevations. The annual abundance of outcropping ISP was larger at intermediate elevations than at low elevations, where the annual ablation rate of the glacier surface was 1.5 times larger than at intermediate elevations. The ISP concentration in the glacier ice at intermediate sites was approximately 10 times larger than at low sites. The water stable isotopes of glacier ice at intermediate sites indicated that glacier ice at the intermediate sites did not form since the last glacial maximum, possibly the Holocene Thermal Maximum. Therefore, the accumulation of the ISP, which is outcropping at the intermediate site, occurred at high elevations after Holocene Thermal Maximum. Article in Journal/Newspaper glacier Greenland Ice cap Qaanaaq Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Greenland Qaanaaq ENVELOPE(-69.232,-69.232,77.467,77.467) Frontiers in Earth Science 8 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Greenland insoluble particles Qaanaaq dark ice albedo reduction 450 |
spellingShingle |
Greenland insoluble particles Qaanaaq dark ice albedo reduction 450 Matoba, Sumito Hazuki, Ryo Kurosaki, Yutaka Aoki, Teruo Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland |
topic_facet |
Greenland insoluble particles Qaanaaq dark ice albedo reduction 450 |
description |
From glaciological observations, we found spatial variation in the input of insoluble particles (ISP) on a glacier surface from atmospheric deposition and outcropping at the surface of the glacier by surface ablation at the ablation area of the Qaanaaq Ice Cap in northwestern Greenland. Possible sources of ISP input to the glacier surface were outcropping at the surface of the glacier by ablation at intermediate and low elevations, and from atmospheric deposition at high elevations. The annual atmospheric deposition of ISP was larger at high elevations than at intermediate and low elevations. The annual abundance of outcropping ISP was larger at intermediate elevations than at low elevations, where the annual ablation rate of the glacier surface was 1.5 times larger than at intermediate elevations. The ISP concentration in the glacier ice at intermediate sites was approximately 10 times larger than at low sites. The water stable isotopes of glacier ice at intermediate sites indicated that glacier ice at the intermediate sites did not form since the last glacial maximum, possibly the Holocene Thermal Maximum. Therefore, the accumulation of the ISP, which is outcropping at the intermediate site, occurred at high elevations after Holocene Thermal Maximum. |
format |
Article in Journal/Newspaper |
author |
Matoba, Sumito Hazuki, Ryo Kurosaki, Yutaka Aoki, Teruo |
author_facet |
Matoba, Sumito Hazuki, Ryo Kurosaki, Yutaka Aoki, Teruo |
author_sort |
Matoba, Sumito |
title |
Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland |
title_short |
Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland |
title_full |
Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland |
title_fullStr |
Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland |
title_full_unstemmed |
Spatial Distribution of the Input of Insoluble Particles Into the Surface of the Qaanaaq Glacier, Northwestern Greenland |
title_sort |
spatial distribution of the input of insoluble particles into the surface of the qaanaaq glacier, northwestern greenland |
publisher |
Frontiers Media |
url |
http://hdl.handle.net/2115/80065 https://doi.org/10.3389/feart.2020.542557 |
long_lat |
ENVELOPE(-69.232,-69.232,77.467,77.467) |
geographic |
Greenland Qaanaaq |
geographic_facet |
Greenland Qaanaaq |
genre |
glacier Greenland Ice cap Qaanaaq |
genre_facet |
glacier Greenland Ice cap Qaanaaq |
op_relation |
http://hdl.handle.net/2115/80065 Frontiers in Earth Science, 8: 542557 http://dx.doi.org/10.3389/feart.2020.542557 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/feart.2020.542557 |
container_title |
Frontiers in Earth Science |
container_volume |
8 |
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1766008896549289984 |